`A bird was confined in a cage outside a window.She often sang at night when all other birds were asleep.
`One night abat came.He asked the bird why she was silent by day and sang only at night.
參考答案:有一只鸟被关在窗户外面的笼子里。他晚上经常在其他鸟都睡觉的时候唱歌。
一天晚上一只蝙蝠过来了。他问这只鸟为什么白天沉默而只在晚上唱歌。
不好意思学的不好